Project financed by the Norwegian Grants 2009 - 2014, within the RO 19 - Public Health Initiative.
Grațiela Chiriac is the chief of the pulmonology laboratory in Bacău, one of the 8 laboratories equipped with high-end technology through the project “Improving the Health Status of the Romanian Population in Romania by Increasing Tuberculosis Control”. Dr Chiriac is laboratory doctor and member of the Laboratory Working Group of the National Tuberculosis Prevention, Surveillance and Control Program. We asked her what would be the advantages of the new equipment of the laboratory network.
How does rapid diagnosis help the patient?
The patient’s benefit is considerable, since they can receive the diagnostic early, together with conclusive information about the sensitivity of the infectious strain. Thus, the patient has the opportunity of a treatment initiated early and tailored according to the result of the drug sensitivity test. In these circumstances, the doctors take the right decisions regarding the treatment and the development of chemo-resistance is avoided, as it would make the cases difficult to treat. The liquid media diagnostic method implies inoculation in a liquid media tube, with a standardized technique, and placing it in the equipment which shall monitor the culture. The positive result, which basically confirms the disease, is obtained in 7 – 14 days, and the final result in 42 days. Comparing with the method on solid media, the benefit is obvious: the time to obtain the positive culture is of 7 – 14 days, versus 21 – 60 days; a complete result, culture and drug sensitivity test in 21 days, versus 50 days or even 4 months.
What does this new technology mean for the doctors working in the field?
For the clinicians, the purpose of the activity within the tuberculosis network is to initiate an adequate treatment, as soon as possible, and for the doctors in the laboratories to establish a correct diagnostic, as soon as possible. Correct diagnostic means the isolation of the strain which determines the disease, identifying it as belonging to the Tuberculosis Complex, testing and determining the sensitivity to drugs.
How many patients were diagnosed so far, with this new method, in the laboratory you run?
By the end of June 2015, we had processed through this method 151 culture samples and sensitivity tests. Bacău is among the counties with a tuberculosis incidence above the country average and with an increased number of re-treatments (ed.: relapses, defaults or failures to previous treatments). That is why is necessary to do cultures on liquid media, to ensure a rapid result. In 2008, we considered the idea of the semi-automated MGIT, at that moment being a routine method in Europe. It was a really special moment, although the method is quite time consuming (each tube was manually passed through the fluorescence reader). The automated method we use now, which indicates with sound and visual signals the positive state of one tube, is beyond comparison, even if it took 7 years to get to this point.